76660550761 has 2 divisors, whose sum is σ = 76660550762. Its totient is φ = 76660550760.

The previous prime is 76660550677. The next prime is 76660550797. The reversal of 76660550761 is 16705506667.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76593883536 + 66667225 = 276756^2 + 8165^2 .

It is a cyclic number.

It is not a de Polignac number, because 76660550761 - 2¹⁵ = 76660517993 is a prime.

It is not a weakly prime, because it can be changed into another prime (76660550861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38330275380 + 38330275381.

It is an arithmetic number, because the mean of its divisors is an integer number (38330275381).

Almost surely, 2^76660550761 is an apocalyptic number.

It is an amenable number.

76660550761 is a deficient number, since it is larger than the sum of its proper divisors (1).

76660550761 is an equidigital number, since it uses as much as digits as its factorization.

76660550761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 76660550761 in words is "seventy-six billion, six hundred sixty million, five hundred fifty thousand, seven hundred sixty-one".